how to build a coin and start an ico
TRANSCRIPT
How to build a coin
and start an ICO
Espeo Ninja Academy
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Agenda
1. Ethereum and smart contract development introduction
[30 min]
2. Coin and ICO requirements discussion [30 min]
3. Smart contract implementation [3 hours]
4. Pizza break! [30 min]
5. ICO status page implementation [1 hour]6. Description of workshops:
http://espeo.eu/blog/workshops/build-coin-start-ico/
1.
Why blockchain?
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Ethereum
Decentralized platform -
global computer
Own currency - Ether
Accounts:
Externally owned
(private keys)
Smart contracts
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Ethereum
Tools:
MyEtherWallet
Mist
Parity wallet
Etherscan.io
Go-ethereum, Parity…
Networks:
Production: Mainnet
Test: Ropsten, Rinkeby,
Kovan
Private
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Goal: fundraising
Unregulated
Coin vs token
ERC20 standard
Elements:
Smart contract(s)
Status page
Whitepaper
Marketing
Initial Coin Offering
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Smart contract development
Process
1. Specification
2. Implementation + unit tests (TDD)
3. Building (bytecode + ABI)
4. Deployment
5. Testing
Immutability!
Tools
Solidity,
OpenZeppelin Solidity contracts,
Truffle Framework,
Testrpc,
JavaScript unit tests,
MyEtherWallet.com,
Solium
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Example
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ICO specification
Let’s decide! It’s up to you!
Duration - start/end dates, ending conditions (min/max caps),
Bonus scheme,
Tokens accessibility,
Funds accessibility,
Fallback scenario,
...
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Coding time!
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Integrating Ethereum with apps
JSON-RPC API
Libraries: web3.js, web3j, Nethereum, ethereum-ruby
INFURA.io infrastructure
ABI necessary for smart contract interaction
Private key handling:
One of many libraries: ethjs-account, eth-lightwallet...
Mist browser, MetaMask Chrome extension - inject web3.js
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ICO status page
Time until end
Total raised
Total sold
# of participants
Bonus scheme
...
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Coding time!
Click for resources:
Article – How to Build a Coin and Start an ICO
Article – State of Blockchain 2017
GitHub link https://github.com/espeo/token-ico-
example
